터미널의 스크립트에서 키보드 입력을 어떻게 감지하나요?

동기/차단 키 캡처:

간단한 입력 또는 raw_input, 차단 사용자가 개행 키를 누르면 사용자가 입력한 텍스트를 반환하는 함수입니다.

typedString = raw_input()

사용자가 단일 키를 누를 때까지 기다린 후 해당 키를 반환하는 간단한 차단 함수

class _Getch:
 """Gets a single character from standard input.  Does not echo to the
screen. From http://code.activestate.com/recipes/134892/"""
def __init__(self):
  try:
    self.impl = _GetchWindows()
  except ImportError:
    try:
      self.impl = _GetchMacCarbon()
    except(AttributeError, ImportError):
      self.impl = _GetchUnix()

def __call__(self): return self.impl()


class _GetchUnix:
def __init__(self):
  import tty, sys, termios # import termios now or else you'll get the Unix version on the Mac

def __call__(self):
  import sys, tty, termios
  fd = sys.stdin.fileno()
  old_settings = termios.tcgetattr(fd)
  try:
    tty.setraw(sys.stdin.fileno())
    ch = sys.stdin.read(1)
  finally:
    termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
  return ch

class _GetchWindows:
def __init__(self):
  import msvcrt

def __call__(self):
  import msvcrt
  return msvcrt.getch()

class _GetchMacCarbon:
"""
A function which returns the current ASCII key that is down;
if no ASCII key is down, the null string is returned.  The
page http://www.mactech.com/macintosh-c/chap02-1.html was
very helpful in figuring out how to do this.
"""
def __init__(self):
  import Carbon
  Carbon.Evt #see if it has this (in Unix, it doesn't)

def __call__(self):
  import Carbon
  if Carbon.Evt.EventAvail(0x0008)[0]==0: # 0x0008 is the keyDownMask
    return ''
  else:
    #
    # The event contains the following info:
    # (what,msg,when,where,mod)=Carbon.Evt.GetNextEvent(0x0008)[1]
    #
    # The message (msg) contains the ASCII char which is
    # extracted with the 0x000000FF charCodeMask; this
    # number is converted to an ASCII character with chr() and
    # returned
    #
    (what,msg,when,where,mod)=Carbon.Evt.GetNextEvent(0x0008)[1]
    return chr(msg & 0x000000FF)


def getKey():
  inkey = _Getch()
  import sys
  for i in xrange(sys.maxint):
    k=inkey()
    if k<>'':break

  return k

비동기 키 캡처:

사용자가 명령 프롬프트에 키를 입력할 때마다, 인터프리터(키로거)에 내용을 입력할 때에도 누른 키로 호출되는 콜백

콜백은 아직 구현되지 않았습니다.

사용자가 누른 후 입력된 텍스트로 호출되는 콜백입니다. Enter (덜 실시간 키로거)

콜백은 아직 구현되지 않았습니다.

프로그램이 실행 중일 때 키를 눌러 호출되는 콜백(예: for 루프 또는 while 루프)

Windows:

import threading
from win32api import STD_INPUT_HANDLE
from win32console import GetStdHandle, KEY_EVENT, ENABLE_ECHO_INPUT, ENABLE_LINE_INPUT, ENABLE_PROCESSED_INPUT


class KeyAsyncReader():
  def __init__(self):
    self.stopLock = threading.Lock()
    self.stopped = True
    self.capturedChars = ""

    self.readHandle = GetStdHandle(STD_INPUT_HANDLE)
    self.readHandle.SetConsoleMode(ENABLE_LINE_INPUT|ENABLE_ECHO_INPUT|ENABLE_PROCESSED_INPUT)



  def startReading(self, readCallback):
    self.stopLock.acquire()

    try:
      if not self.stopped:
        raise Exception("Capture is already going")

      self.stopped = False
      self.readCallback = readCallback

      backgroundCaptureThread = threading.Thread(target=self.backgroundThreadReading)
      backgroundCaptureThread.daemon = True
      backgroundCaptureThread.start()
    except:
      self.stopLock.release()
      raise

    self.stopLock.release()


  def backgroundThreadReading(self):
    curEventLength = 0
    curKeysLength = 0
    while True:
      eventsPeek = self.readHandle.PeekConsoleInput(10000)

      self.stopLock.acquire()
      if self.stopped:
        self.stopLock.release()
        return
      self.stopLock.release()


      if len(eventsPeek) == 0:
        continue

      if not len(eventsPeek) == curEventLength:
        if self.getCharsFromEvents(eventsPeek[curEventLength:]):
          self.stopLock.acquire()
          self.stopped = True
          self.stopLock.release()
          break

        curEventLength = len(eventsPeek)



  def getCharsFromEvents(self, eventsPeek):
    callbackReturnedTrue = False
    for curEvent in eventsPeek:
      if curEvent.EventType == KEY_EVENT:
              if ord(curEvent.Char) == 0 or not curEvent.KeyDown:
                pass
              else:
                curChar = str(curEvent.Char)
                if self.readCallback(curChar) == True:
                  callbackReturnedTrue = True


    return callbackReturnedTrue

  def stopReading(self):
    self.stopLock.acquire()
    self.stopped = True
    self.stopLock.release()

Polling:

사용자는 단순히 키를 누를 때 해당 키를 기다릴 필요 없이 무언가를 할 수 있기를 원합니다. -블로킹). 따라서 그들은 poll() 함수를 호출하고 키를 반환하거나 None을 반환합니다. 이것은 손실이 있을 수도 있고(폴링 사이에 너무 오랜 시간이 걸리면 키를 놓칠 수 있음) 비손실일 수도 있습니다(폴러는 누른 모든 키의 기록을 저장하므로 poll() 함수가 키를 요청할 때 항상 반환됩니다) 누른 순서대로).

Windows 및 OS X(또는 Linux도 가능):

global isWindows

isWindows = False
try:
  from win32api import STD_INPUT_HANDLE
  from win32console import GetStdHandle, KEY_EVENT, ENABLE_ECHO_INPUT, ENABLE_LINE_INPUT, ENABLE_PROCESSED_INPUT
  isWindows = True
except ImportError as e:
  import sys
  import select
  import termios


class KeyPoller():
  def __enter__(self):
    global isWindows
    if isWindows:
      self.readHandle = GetStdHandle(STD_INPUT_HANDLE)
      self.readHandle.SetConsoleMode(ENABLE_LINE_INPUT|ENABLE_ECHO_INPUT|ENABLE_PROCESSED_INPUT)
      
      self.curEventLength = 0
      self.curKeysLength = 0
      
      self.capturedChars = []
    else:
      # Save the terminal settings
      self.fd = sys.stdin.fileno()
      self.new_term = termios.tcgetattr(self.fd)
      self.old_term = termios.tcgetattr(self.fd)
      
      # New terminal setting unbuffered
      self.new_term[3] = (self.new_term[3] & ~termios.ICANON & ~termios.ECHO)
      termios.tcsetattr(self.fd, termios.TCSAFLUSH, self.new_term)
      
    return self
  
  def __exit__(self, type, value, traceback):
    if isWindows:
      pass
    else:
      termios.tcsetattr(self.fd, termios.TCSAFLUSH, self.old_term)
  
  def poll(self):
    if isWindows:
      if not len(self.capturedChars) == 0:
        return self.capturedChars.pop(0)

      eventsPeek = self.readHandle.PeekConsoleInput(10000)